Steam now requires "Steamworks SDK (1.53a)":
https://partner.steamgames.com/downloads/steamworks_sdk.zip
and GMS2 now needs an extension for steam functions:
https://marketplace.yoyogames.com/assets/10709/steamworks-ext
Steam now requires "Steamworks SDK (1.53a)":
https://partner.steamgames.com/downloads/steamworks_sdk.zip
and GMS2 now needs an extension for steam functions:
https://marketplace.yoyogames.com/assets/10709/steamworks-ext